English

A class of digit extraction BBP-type formulas in general binary bases

Number Theory 2016-03-25 v1

Abstract

BBP-type formulas are usually discovered experimentally, one at a time and in specific bases, through computer searches. In this paper, however, we derive directly, without doing any searches, explicit digit extraction BBP-type formulas in general binary bases b=212pb=2^{12p}, for pp positive odd integers. As particular examples, new binary formulas are presented for π3\pi\sqrt 3, π3log2\pi\sqrt 3\log 2, 3  Cl2(π/3)\sqrt 3\;{\rm Cl}_2(\pi/3) and a couple of other polylogarithm constants. A variant of the formula for π3log2\pi\sqrt 3\log 2 derived in this paper has been known for over ten years but was hitherto unproved. Binary BBP-type formulas for the logarithms of an infinite set of primes and binary BBP-type representations for the arctangents of an infinite set of rational numbers are also presented. Finally, new binary BBP-type zero relations are established.

Keywords

Cite

@article{arxiv.1603.07395,
  title  = {A class of digit extraction BBP-type formulas in general binary bases},
  author = {Kunle Adegoke and Jaume Oliver Lafont and Olawanle Layeni},
  journal= {arXiv preprint arXiv:1603.07395},
  year   = {2016}
}

Comments

arXiv admin note: text overlap with arXiv:1603.05810

R2 v1 2026-06-22T13:17:33.818Z